Barcode Scan States: To Create the Set of Scan States

This activity will walk you through the creation of the set of barcode scan states.

Story

Suppose that you are implementing a scan mode for a custom barcode-driven form. The barcode scan class of this form uses the WarehouseManagementSystem<TSelf,TGraph> base scan class.

You need to define two new scan states for this scan mode: one input state and one confirmation state. Three other input states will be inherited from the base scan class.

Process Overview

System Preparation

Before you begin performing the step of this activity, do the following:

1. Prepare an MYOB Acumatica instance as described in the Test Instance: To Deploy an Instance prerequisite activity.
2. Create a barcode scan class as described in the Barcode Scan Class: To Create a Barcode Scan Class prerequisite activity.
3. Define the required properties of the scan mode as described in the Barcode Scan Mode: To Define the Required Properties prerequisite activity.

Step: Defining the Set of Scan States

To create the set of scan states, in the scan mode class, add the following code.

public sealed class CountMode : ScanMode
{
    ...
  
    protected override IEnumerable<ScanState<INScanCount>> CreateStates()
    {
        yield return new RefNbrState(); // new state introduced in the CountMode
        yield return new LocationState(); // state inherited from WMSBase
        yield return new InventoryItemState(); // state inherited from WMSBase
        yield return new LotSerialState(); // state inherited from WMSBase
        yield return new ConfirmState(); // new state introduced in the CountMode
    } 
  
    ...
}